43255225 has 24 divisors (see below), whose sum is σ = 61167960. Its totient is φ = 30059520.

The previous prime is 43255217. The next prime is 43255273. The reversal of 43255225 is 52255234.

It can be written as a sum of positive squares in 12 ways, for example, as 21827584 + 21427641 = 4672^2 + 4629^2 .

It is not a de Polignac number, because 43255225 - 2³ = 43255217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43255193 and 43255202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1611 + ... + 9439.

It is an arithmetic number, because the mean of its divisors is an integer number (2548665).

Almost surely, 2^43255225 is an apocalyptic number.

It is an amenable number.

43255225 is a deficient number, since it is larger than the sum of its proper divisors (17912735).

43255225 is a wasteful number, since it uses less digits than its factorization.

43255225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7869 (or 7864 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 43255225 is about 6576.8704563797. The cubic root of 43255225 is about 351.0315823996.

Subtracting 43255225 from its reverse (52255234), we obtain a palindrome (9000009).

The spelling of 43255225 in words is "forty-three million, two hundred fifty-five thousand, two hundred twenty-five".